Since this tracks on the terestial O2 line, can this be concidered a
planetary meteorite, along
with the Lunars, Martians, as well as Asteroid 4 vesta?
Would these be the only 4 planitaries so far or has maybe Mecrury
checked in with a sample of it's own?
Pete IMCA 1733
Hi Pete,
Aubrites and enstatite chondrites also plot on the oxygen isotope
terrestrial fractionation line (TFL) and up to now they are not proven
to be from planets. So being on the TFL doesn't make the meteorite
planetary. But I guess it depends on your definition of planetaries,
I would only
Dear Professor Agee,
The IAU's decision to go all rogue on the definition of a planet,
dwarf-planet, minor-planet, [iamnotaplanet, iamtooaplanet,
someplanetnamedstan] doesn't leave me with a warm and fuzzy about
calling Earth a planet. Cleared our orbit - I'm not even certain
that's necessarily
Hi Jodie,
My bias is from a planetary differentiation perspective. The only
known meteorites to sample solar system bodies with long-lived (1 BY)
igneous activity are lunars and martians. The HEDs might be considered
borderline planetaries, since some cumulate eucrites have slightly
younger ages
Hi David, Carl and List,
Thanks for the detailed explanation David. :)
I recall reading something about catastrophic events that can reset
the CRE of some materials. Maybe I am not remembering correctly. Is
it possible that a cataclysmic event could shock/alter a material to
such a degree
:44 AM
| To: drv...@sas.upenn.edu
| Subject: Re: [meteorite-list] NWA5400 redux - a long explanation
|
|
| Awesome info! do you mind if I repost some of this?
|
| Greg Catterton
| www.wanderingstarmeteorites.com
| IMCA member 4682
| On Ebay: http://stores.shop.ebay.com/wanderingstarmeteorites
Carl:
I am glad that I provoked thought - that is in my mandate as an educator...;)
I will try to answer your questions, albeit perhaps not in order, and I hope I
can explain.
First, you ask about Mbarak's box of rocks, aren't they likely paired? Well, it
is very unlikely that two different
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